from the sum of x + y - 2z - and 2x - y + z subtract x + y + z
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Answered by
8
Answer:
Step-by-step explanation:
X + y - 2z + 2x - y + z
= 3x - z
3x - z - x - y - z
= 2x - y - 2z
Answered by
0
5x + 14y
Step-by-step explanation:
1)add 5y to 2x
2)multiply the sum by 3
3)subtract X + y from the product
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